Patents Assigned to RAS Holding Corp.
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Patent number: 6589217Abstract: Introduced is a device that may be used to treat the effects of macular degeneration and other eye disorders by increasing the optical effect of the retinal surface of the eye. This may be accomplished using a device whose body has a shape prescribed to increase the depth of the fovea and, in the process, make the sides of the clivus more convex, thereby utilizing the varying optical properties of the retinal area. A suitable association of this device with the eye will cause an image beam traveling from the lens through the vitreous humor to magnify and impinge an image perception area encompassing the macula. According to one advantageous embodiment, the device includes a body adapted for association with the eye to manipulate the retina of the eye to effectively augment the photoreceptor cells proximate the macula of the eye.Type: GrantFiled: November 26, 2001Date of Patent: July 8, 2003Assignee: RAS Holding CorpInventor: Ronald A. Schachar
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Patent number: 6579316Abstract: A segmented scleral expansion band adapted for implantation within or fastening to a segment of the sclera of an eye lying outside of and adjacent to the ciliary body of the eye, is formed from a number of arcuate segments, curved to match the curvature of the globe of the eye, and joined together at each end to form a complete scleral expansion band. The band is implanted in the sclera of the eye by forming circumferential tunnels, inserting the band segments through the tunnels, and joining the ends of the segments to form a complete scleral expansion band. The scleral expansion band is useful in treating presbyopia and other ocular disorders.Type: GrantFiled: March 5, 2001Date of Patent: June 17, 2003Assignee: RAS Holding CorpInventor: Ronald A. Schachar
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Patent number: 6493151Abstract: A variable focus lens is constructed by making small changes in the equatorial diameter of an elastically deformable lens. The lens may be deformed by radial tension exerted in a plane generally perpendicular to the optical axis. The radial tension may be exerted by radially acting mechanical apparatus or by means of rings embedded or attached at the equator of the lens, whose diameter can be altered by heating, or by imposition of electrical or magnetic fields.Type: GrantFiled: June 11, 2001Date of Patent: December 10, 2002Assignee: RAS Holding CorpInventor: Ronald A. Schachar
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Publication number: 20020140903Abstract: A system and method is disclosed for determining the resolving power of an eye. An eye is simultaneously illuminated with a first colored light source and a second colored light source. The colored light sources are moved toward the eye. At a point where the eye ceases to resolve the images of the two light sources the two colors of the light sources combine to form a third color. The eye easily perceives the sudden appearance of the third color that indicates the loss of resolution. In an alternate embodiment a display screen provides two colored light sources that flicker at different flicker rates. By selecting certain values for the flicker rates the two colored light sources combine to form a light that does not appear to flicker at the point where the eye ceases to resolve the images of the two colored flickering light sources.Type: ApplicationFiled: March 28, 2002Publication date: October 3, 2002Applicant: RAS Holding CorpInventor: Ronald A. Schachar
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Patent number: 6322545Abstract: Introduced is a device that may be used to treat the effects of macular degeneration and other eye disorders by increasing the optical effect of the retinal surface of the eye. This may be accomplished using a device whose body has a shape prescribed to increase the depth of the fovea and, in the process, make the sides of the clivus more convex, thereby utilizing the varying optical properties of the retinal area. A suitable association of this device with the eye will cause an image beam traveling from the lens through the vitreous humor to magnify and impinge an image perception area encompassing the macula. According to one advantageous embodiment, the device includes a body adapted for association with the eye to manipulate the retina of the eye to effectively augment the photoreceptor cells proximate the macula of the eye.Type: GrantFiled: November 13, 2000Date of Patent: November 27, 2001Assignee: RAS Holding CorpInventor: Ronald A. Schachar
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Patent number: 6280468Abstract: Presbyopia is treated by implanting within a plurality of elongated pockets formed in the tissue of the sclera of the eye transverse to a meridian of the eye, a prosthesis having an elongated body having a first surface and a second surface opposite the first surface to contact the base and flap of the scleral pocket. The first and second surfaces are spaced apart a distance so that the implanted prosthesis exerts an outward force on the flap of the scleral pocket which results in an outward traction on at least the anterior margin of the scleral pocket. The combined effect of the implanted prostheses is to exert a radially outward traction on the sclera in the region overlying the ciliary body which expands the sclera in the affected region together with the underlying ciliary body. The expansion of the ciliary body restores the effective working distance of the ciliary muscle in the presbyopic eye and thereby increases the amplitude of accommodation.Type: GrantFiled: April 16, 1998Date of Patent: August 28, 2001Assignee: RAS Holding CorpInventor: Ronald A. Schachar
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Patent number: 6197056Abstract: A segmented scleral expansion band adapted for implantation within or fastening to a segment of the sclera of an eye lying outside of and adjacent to the ciliary body of the eye, is formed from a number of arcuate segments, curved to match the curvature of the globe of the eye, and joined together at each end to form a complete scleral expansion band. The band is implanted in the sclera of the eye by forming circumferential tunnels, inserting the band segments through the tunnels, and joining the ends of the segments to form a complete scleral expansion band. The scleral expansion band is useful in treating presbyopia and other ocular disorders.Type: GrantFiled: March 2, 1998Date of Patent: March 6, 2001Assignee: RAS Holding Corp.Inventor: Ronald A. Schachar
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Patent number: 6146366Abstract: Introduced is a device that may be used to treat the effects of macular degeneration and other eye disorders by increasing the optical effect of the retinal surface of the eye. This may be accomplished using a device whose body has a shape prescribed to increase the depth of the fovea and, in the process, make the sides of the clivus more convex, thereby utilizing the varying optical properties of the retinal area. A suitable association of this device with the eye will cause an image beam traveling from the lens through the vitreous humor to magnify and impinge an image perception area encompassing the macula. According to one advantageous embodiment, the device includes a body adapted for association with the eye to manipulate the retina of the eye to effectively augment the photoreceptor cells proximate the macula of the eye.Type: GrantFiled: November 3, 1998Date of Patent: November 14, 2000Assignee: RAS Holding CorpInventor: Ronald A. Schachar